Stop motion for spinning frames



Nov. 27 1923.

1 J. W. CAUTHEN STOP MOTION FOR SPINNING FRAMES Filed Feb. 15'. 1922- I uwmron. (7. W Gan/1:71am

BY g ATTORNEYS Patented Nov. 27, 1923..

J' OHN- WILLIAM CAUTHEN, OF KAAINAPOLIS, NORTH CAROLINA.

STOP MOTION FOR SPINNING FRAMES.

Application filed February 15, 1922. Serial No. 536,732. 7

T 0 all whom it may concern Be it known that I, J OHN WILLIAM CAU- THEN, a citizen of the United States, and a resident of Kannapolis, in the county of Cabarrus and State of North Carolina, have invented certain new and useful Improvements in Stop Motions for Spinning Frames, of which the following is a specification.

My invention relates to improvements in spinning frames, but more particularly to stop motion mechanism therefor, and it consists in the construction, combination and mode of operation herein described and claimed.

One of the objects of the invention is to provide a stop motion mechanism for spinning frames which will prevent over-filling of the bobbins.

A further object ofthe invention is to provide stop motion mechanism which will lock the frame when it comes into operation, so that the operative can doff the bobbin without danger of injury by a re-starting of the spinning frame. 1

Other objects and advantages will appear in the following specification, reference being had to the accompanying drawing, in which:

Fi 1 is a perspective view illustrating the e ements of the improved stop motion mechanism, and

Figs. 2, 3 and 4 are sec'tionson the line 22, 3--3 and 4-4 of Fig. 1 respectively.

The purposes of the invention may be briefly related so that the reader may become acquainted with the use to which 1t is put. As stated in the objects of the invention, the improved stop motion mechanism prevents the bobbins of a spinning frame from becoming over-filled, and smce the stop motion mechanism is made to knock off regularly, each bobbin will con tain precisely the same amount of yarn. This precision of' operation effects a great saving of yarn by virtue of the fact that the bobbins are not permitted to become over filled.

The locking of the spinnin frame when the stop motion mechanism functions, enables the operative to .dofi the filled bobbins without danger of injury by a restarting of the spinning frame. p

' The construction of the invention comprises a latch 1 with a holding shoulder 2 on the under side and a lock shoulder 3 on one side. The shoulder 2 normally engages a bracket 4 and thus holds the latch 1 retracted against the tension of thespring 5. The bracket 4 is fixed at F (Fig. 4) on a convenient part of a spinning frame. A stud 6 is also fixed to a convenient part of the frame. It is to this stud that the spring 5 has connection through a link 7.

The latch 1 has a slot 8 in which a bolt 9 is fixed as shown in Fig. 2. It is in the end of this bolt that a shifter bar 10 is fixed so as to move with the latch 1 when released from the bracketv 4. The bar 10 I carries a yoke 11 on the far end for the purpose of shifting the belt B from the fast pulley 12 to the loose pulley 13.

The raising of a lift rod 14 disengages the shoulder 2 of the latch 1 from the bracket 4 and enables the spring 5 to contract and cause the shifting of the belt B. to the loose pulley 13 through the medium of the shifter bar 10. The rod 14 is pivoted at 15 in a bearing 16 which is: fixed on the spinning frame. A support 17 guides the free end of the rod 14. A lift stem 19 engages the under side of the rod 14, and at the lowermost extremity carries an adjustable screw 18 which is adapted to be engaged by a lever 21.

A bracket 20 guides the lift stem 19. The lever 21 causes the. moving of the stem 19 in its bracket 20 and thus causes the raising of the lift rod 14 with the result mentioned above. r I

The lever 21 is actuated by the rocker shaft 22 which is one of the main operating parts of the spinning frame. This shaft operates at predetermined times, to lift the lever 21, strike the screw 18, raise the rod 19,

move the rod 14 on its pivot 15 and so release the latch 1 from the'bracket 4 so that the spring 5 may pull the latch over toward the from a fast to a loose pulley, means serving as a mounting for the shifter bar on the latch including an extension which is ad justable in the slot of said latch, a pivoted rod adapted to lift the latch shoulder from' the bracket to permit operation by said pulling means, a lifter rod engaging said piv oted rod, and a lever carried by a rock shaft of a spinning frame adapted to periodically enga e the lifter rod.

2. tolp motion mechanism comprising a latch having a shoulder and a slot, means for pulling the latch in one direction, a

, bracket furnishing partial support for the latch being adapted to be engaged by the shoulder to resist said pulling means, a

shifter bar having a yoke for shifting a from the bracket, means on which one end of said rod is pivoted, means adjacent to the other end for guiding the rod, a lifter rod engaging said pivoted rod, means supporting said lifter rod, a lever carried by a rock shaft of a spinning frame adapted to periodically engage the lifter rod, and ad justable means on the engageable end of the lifter rod to vary the place of engagement.

8. Stop motion mechanism comprising a latch which hasa shoulder on one edge and a slot in one end, means attached to the latch to pull it one way, a bracket in which the latch may slide but in which such sliding is checked by the engagement of said shoulder, a shifter rod situated beside the latch and having a yoke for shifting a belt from a fast to a loose pulley, means which serves as a carrier for the shifter rod, means by which said carrier means is adjustable in said slot so as to vary the longitudinal position of the shifter rod in respect to the latch, and means to lift the latch and rod simultaneously thereby to disengage said shoulder and permit the latch and rod to move together under the influence of said pulling means.

JOHN WILLIAM OAUTHEN. 

